Spraying attachment for tractors



'FiledMay 25. i923. 4 sheets-sheet 1 anim/wz ga 1927B 1,626 371 Apnl 26 N. A. WRIGHT SPRAYING 4ATTACHMENT FOR TRACTORS Filed May'25, 192.3 4 Sheets-Sheet 2 1927 1,626,371 Apnl 2.6 N. A. WRIGHT SPRAYING ATTACHMENT FOR YTIRCTORS Filed 'May 25. 1925 4 Sh'eets-Sheet-S 1,626, 71 Apnl 26,1927. MAWRIGHT 3.

.SPRAYING ATTACHMENT FOR TRCTORSy Filed May 25. 1925 4 sheets-sheet 4 lL w" 'nl -f/'l I ,.559 l *1M il ff i A 1w' Patented Apr. 2,6, 1927.l

" captare-srt@ NORMAN Awaiting; or PoNr1ac',.1vificHIGAN, Assieitoe Toroiwmqmeiicroiz celurANY, 0F PONTIAC, MICH'XGAN, Acolaioiuizproiv oeiitieiiieaiv.

` Sr'lrAYiNG errAQHMErr-FOR rewrote.,

pence-tibi; sied Mayaa 192s. seriai'ivaciigeaz.-

Ever since a tractor `hasproven tofbe so popular and practical or'the fruit grower The, big disadvantage `found in` adapting the tractor tothe work of spraying. was the necessityof trailing' a tanklcelfiind,y making impossibleto get intoy close quarters or rather to .get ont of close quarters, for insieme, trom' one gran@ rew'teanother; the, requirement 0f, leng' h ose connectionsv be-` tween tractor andv taiijkfwhich am @13911 brokeby her1stanal/itin the Wheelsand in every way prevea iinsatsfatoryz "aildi'lrthee. Athe'lflrlesslty for an aurilllaljy ,engine t0 eper'ate an' agitator or else acruemakef shiftilgtator drivenhyjtraction alone. MY' invention overcomes vthe .abovel ydisadvantage by lesthennsthe wheelbase of f the tractor and mounting a'tanlr` front if the power plant of thetractorz 'sothat there will be a teur-wheel vehicle .that 'can be readily l moved vabout in Close quarters s. T0`

increase the wheel base of yan ordinary tractor, I remove the front 'axle assembly and .attach to the tractor'body rigidwjfraine which may have lits 'ferr/'ard @ad 'supported bythe front axle'fasseinbly with the tank 'secured en theflirtline.y

universal tractor attachment llluflllg@ frame, which also sup/ports pumps, driven .from the.' tractor "engine for lSerenna the Gant-ents of 'the 'tank '0.1.1v the forward .end of y the frame. ProVisiOn is` made for controlling the operationof the4 Pump, 4from the tractorengine'so that 'there be a vcessationrin the operation oit' the pumps, particuone .locality .to l another.

`My inven ion further aims. to @Qihbne 21' P la-rlyy when the tractor lbeingl moved 'from l well knowntype of tractor anda' large tank to form rigid andstii bod-y( between front .and real LYlQaSsemblieS .and whilel my attachment has been especially designed' for tirchard`r Spraying pur-noses I may use the The demand- Fig. 65 is a cross' .invention Afurther aims-to provide an extension frame for' a tractor bywhich the Awheel base of the tractor "may lengthened Afrom the vpower plant forward' and the greater f'part of the iframe; mayl be used as a 'support for any structui'efthat may be'coin venientlyl associated with the' tractor.

My tractor attachment will be hereinafter lspecifically described and then; claimed 1 and v reference will now wherein 1 v Figure l isa perspectiveview of a tractor in accordance withftliis invention; j"

FigJQis a plan of the tractorattachment showing the tank yiii horizontal section;

F ig. 3 is a `side elevationfcii1` the tractorattachment, partly broken awayl and partly .in section; Y f

'Figze isa'perspective view ofthe `exte1i-- sion traine ofthetractorgy Fig. tis'- a View ofthe"fronttiiaftftht" sectional view taken on tractor attachment;

.` Fig. 8 is across sectionalvi-ew taken on In the di',awings7 lhavefillustrated" af'conventional'form of 'tractorincluding vf tpower plant l Vandthe necessaryaccessories; a-rear axle assembly f2; a stee'i/ringl gear's; airont end. bearing 4 which is usuaiiysuppgi-td 'by a front axle assembly including 'an aigle 15,

steering wheel Gian-d steeringlhun'clrlegcoiinecy tions 7 g and, an engine driven shaiftS having' the usual fair-belt pulley 9. ".:Tlief elements thus far recited arewell known' and other` 4parts of' the 'tractor will be'here'i'naifter i'ef erred to whendescribing the tractor'attaclrmentM. A. i,

The tractor attachment :comprises anjextension frame 'tapering inwardly froinjits, Vrear end' to its forward 'endandlsaid'irame isv composed of two vsid-e,members lOand 11,

preferably yof the I-beam construction. lower lateral flangesof theseside members are connected byafront'eiid bearing Vl2 and a radius rod hanger 13, while the webs fof Said Side members..areomieotedby a vCradle or transverse m'einberxlli and a tilerod 1 5.

On th upper lateral flanges of .desde ineefberS A1. 0 and 11 aretransversesupports16 and upvand the front-axle assembly disconnected. The front end bearingv 12 of the extension` frame is then connected'to the axle A5 by a which cradle or transverse member it may be pivot connection 2,0 and the extension frame isplaced under the power lplant of the tractor with the front endbearjing 4 tting down over the cradle or transverse member 15 to connected, as at 21.- f This is vbestshown in Fig. 8k where it will' be notedthat the cradle or transverse member has'adjustable abut-` Vments `22 .for engaging under the .sides of the front end ibearing 4 to prevent said front end bearing from rocking relative tothe cradle oritraversemember 14.

The transverse tie rod 15 extendsun'der the crank case 23 of the power plantcl and engages in the usual fork or member 24 to `'which the radius rods 25 of the frontaxle assemblyhave `been heretofore connected.

-Sincethe front axle assembly yhas been advanced to a position considerably forward of the power plant .1, the radius rods 25 are now connected to the yhanger 13 `of thefex.- tension frame. n s

Thenotches 18 at the rear end ofthe extension frame are adapted to receive 'a couplingflange,y 26 of the y tractor with the brackets 19l kabutting bolts or fastening mea-ns27of the'flange 26 and supporting lateral anges 28;;forming part yof the `crank case 23 and the yengine blockof the tractor..y

An .inverted U-shaped tiev rod 29 extends over the rear .end of the engine block, as best shown in Figs..3 and 7 withthe ends of l ythe tie rodattached to the extension frame at the brackets 19. The rear enolofthe extension frame is now tied to lthev forward end of the power plant with thetransverse "supports 16 and 17 at theforward end of the power plant with plenty of room on the forward-end of thekextension frame for a. v structure,-to be hauled by the tractor. The

wheel baseofy the. tractor has been lengthcned and in order that-thetractor-steering gear 3 maybe utilized for steering the front wheel 6, a transversely disposed lever 30 is j pivotally connected to the rside member 10L and extends throughja supporting strap 31 attached lto the side member 11. The free end of the leverl is connected by 'a rod 32 to the steering gear 3 and by arod 33 to kthe steering knuckle connections 7.

Mounted ontheforward end ofl the yextension frame is a .substantially semi-cylindrical tank34that maybe made of wood or 'l metal with atop serving as a platform 35 tank.

provided with afillingopening. 36 for the tank. @n the platform is a vgua-rd rail 37 for a person that may standpon the tank.

during the'operation of spraying trees, vines onotherplants. y

`The tank 34l has its forward end overhanging the front axle assembly and the end of the extension frame with .the rear l end 'of the tankin close proximity` to the radiator ofthe tractor, and as illustrating attaching means for retaining the tank on the forwardend of theextension frame yI show side tie rods' 38l which havethe upper ends.

thereof connectedto the platform 35and the lower ends thereof connected tothe webs of the .side frames .10 and 11, as best shown in.

Fig. 5. The upper inner lateral flanges fof the side memberslO and 11 may bedepressed or shaped to afford a seat for the bottom of the tank with such seat-cooperating with the tie rods` inr preventing vdisplacement of the Extending longitudinally of the tank 34,

bular casing 40 which has its endsfmounted in the end walls 41 and 42 of the tank 34.

4in proximity to the bottom-'.thereof, a tu- JournaledV in ythis tubular casing is a starter i' Vshaftf43 longitudinally alining withy the engine driven `shaft '8. The rear end of the starter shaft .43 lis suitably coupled, as at 44, tothe" pulley -9v kof the shaft 8 and loose on the'startershaft 43, betweenthe tankv 34 and the pulley l9 are the hubs of sprocket wheels 45 and 46 which are adapted to beyfixed to the ystarter shaft43, for rotation therewith, by a conventional fform of clutchmechanism 47 "normally establishing a driving relation between'the starterrshaft 43 and the sprocket ,wheels 45 and 46. The clutch mechanism 47 may be actuated by a leverv48, pivotally supported by a bracket 49 onthe tank endl ,n

wall 42, to release the sprocket wheels 45 and 46 .relative to thelstarter shaft, thus lpery lmitting movement y of the 'tractor without driving the sprocket wheels. The lever.- 48 may have a 'rearwardly extending connection or operating device which willpermit of the clutch mechanism lbeing controlled from the operators. seat of the tractor.

The from. @ne m11 41 of the tank 341g providedwith a conventional form' of-starting crank or.' deviceby which the startery shaft 43 may be `rotated to facilitate starting thev power plant of the tractor.

Journaled `n the end walls 41 and 42 of the tank 34 are th'eendsofa'gitator shafts51 disposed in parallelism contiguousto the tubular casing 40. On theseshafts are agitators 52 of aconventional form" adapted to agitatethe contents of the tank 34 so as to maintain. va uniform spraying mixture within the tank. The forward ends of the shafts 51 are provided `with pulleys 53for an `endless belt 54 trained under la pulley 55 mount- "ed on the forward end ofthe starter `shaft 43 andy in consequence of this power trans! mission the agitator shafts 51 will be operated in synchronism withthe starter shaft." Mounted von the transverse supports 16V and 17 are pump units, one at each side of the extension frame, each pump unit including a spray pump 56 and a reservoir 57, said pump and reservoir having suitable connections, particularly hose connections 58 extending through the filling opening 36 ofthe tank 34, and outlet connections 59'to 'which may be connected one or more spray nozzles or guns, see Fig. l. The pumps 56 are adapted to be driven by endless sprocket chains 60 from the sprocket wheels 45 `and 46 of the starter shaft 43. If only one spray for other purposes than that of supporting the tank of a spraying apparatus, particu-"i i larly Ain the winter' time, therefore I do not care to confine my invention to any specific use other than may be set forth in the .appended claim.

l What I' claim is l lspraying apparatus adapted-t0 be applied toa `.Fordson tractory by separating the sol front axleassembly from the power plantof the tractor, said apparatus comprising a frame having means'` of connection to the tractor kpower plant and the front axle as* sembly, a tank on the front en'dvof said frame, a lshaft extending through said tank andhaving at its rear end vmeans ,for couwhereby saidv tank shaft may be` usedfor starting said power plant when the spray ing apparatus is attached to the tractor, ak

pump supported from the side of said frame at the rear of said tank, said pump being .pling it to the crank shaft of the tractor,

operatively connected t0 said tank and to jsaid tank shaft, an agitatorin said tank, and

driving connections between said agitator and saidr tank shaft.

Intestimony whereof I vaiix my signature.v

" NORMAN- AQ WRIGHT. 

